How To Install krb5-otp on Ubuntu 20.04
Introduction
In this tutorial we learn how to install krb5-otp
on Ubuntu 20.04.
What is krb5-otp
krb5-otp is:
Kerberos is a system for authenticating users and services on a network. Kerberos is a trusted third-party service. That means that there is a third party (the Kerberos server) that is trusted by all the entities on the network (users and services, usually called “principals”).
This is the MIT reference implementation of Kerberos V5.
This package contains a plugin for the OTP preauthentication method (RFC 6560), which allows Kerberos tickets to be obtained using One-Time Password authentication. This plugin is for use on the KDC; the client support is built in to libkrb5.
Package: krb5-otp Architecture: amd64 Version: 1.17-6ubuntu4 Multi-Arch: same Priority: extra Section: universe/net Source: krb5 Origin: Ubuntu Maintainer: Ubuntu Developers [email protected] Original-Maintainer: Sam Hartman [email protected] Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 136 Depends: libc6 (>= 2.8), libcom-err2 (>= 1.43.9), libk5crypto3 (>= 1.6.dfsg.2), libkrad0 (= 1.17-6ubuntu4), libkrb5-3 (>= 1.12~alpha1+dfsg-1~), libkrb5support0 (>= 1.11+dfsg) Filename: pool/universe/k/krb5/krb5-otp_1.17-6ubuntu4_amd64.deb Size: 18340 MD5sum: bef97c9eb63172c49eec8a7f12a88fda SHA1: 718f3c0fccd7e0dada70b1c3f60b5421cec04c7e SHA256: 9bd5233d8c372876400f8a50d2cbf852efc33569ebd4ee6cc37b7441fb4f13d3 Homepage: http://web.mit.edu/kerberos/ Description-en: OTP plugin for MIT Kerberos Kerberos is a system for authenticating users and services on a network. Kerberos is a trusted third-party service. That means that there is a third party (the Kerberos server) that is trusted by all the entities on the network (users and services, usually called “principals”).
This is the MIT reference implementation of Kerberos V5.
This package contains a plugin for the OTP preauthentication method (RFC 6560), which allows Kerberos tickets to be obtained using One-Time Password authentication. This plugin is for use on the KDC; the client support is built in to libkrb5.
There are three methods to install krb5-otp
on Ubuntu 20.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install krb5-otp Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install krb5-otp
using apt-get
by running the following command:
sudo apt-get -y install krb5-otp
Install krb5-otp Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install krb5-otp
using apt
by running the following command:
sudo apt -y install krb5-otp
Install krb5-otp Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install krb5-otp
using aptitude
by running the following command:
sudo aptitude -y install krb5-otp
How To Uninstall krb5-otp on Ubuntu 20.04
To uninstall only the krb5-otp
package we can use the following command:
sudo apt-get remove krb5-otp
Uninstall krb5-otp And Its Dependencies
To uninstall krb5-otp
and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove krb5-otp
Remove krb5-otp Configurations and Data
To remove krb5-otp
configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge krb5-otp
Remove krb5-otp configuration, data, and all of its dependencies
We can use the following command to remove krb5-otp
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge krb5-otp
References
Summary
In this tutorial we learn how to install krb5-otp
package on Ubuntu 20.04 using different package management tools: apt
, apt-get
and aptitude
.